Buying the dip is not for new investors but rather for old investors whom their bitcoin size is in a certain level, maybe 60% and above of their bitcoin target. They can wait to buy in the dip, so that their bitcoin portfolio can increase significantly when they buy more at a cheaper price. If you choose the wrong method as a beginner, you might end up wasting your time that you should have use to accumulate a good amount of bitcoin and you will miss the opportunities in the market.
What of a situation whereby a newbie enters his investment journey during a dip and has some big discretionary income available at his disposal. Are you saying he shouldn't take advantage of the dip and acquire as much as he can because he's a newbie or should he wait until after the dip tho stay his accumulation journey. Of course not, he would buy as much as he can and follow up his investment with regular DCA accumulation. So the dip is for everybody, both new and old investors alike, but waiting explicitly for the dip to start your investment journey is a bad investment strategy. The dip is an advantage to buy at lower prizes and not to be totally dependent on to invest in Bitcoin.